According to a new survey half of IT works admit sleeping on the job or kissing coworkers. Well I have never fallen asleep, but I know few co-workers currently suffering from sleep disorder. From the article:

And nearly half of techies also are apparently in the mood for love. Forty-seven percent of tech pros admit they’ve kissed a co-worker, according to the online survey of 5,700 U.S. workers, including 163 techies, conducted by Harris Interactive for job site CareerBuilder.com. Forty-nine percent of male techies say they’ve fallen asleep at work, while only 35% of women admitted doing so.

As for smooching, 44% of men techies say they’ve kissed a co-worker, while only 34% confessed to puckering up with a colleague.

However many business people or manager takes power nap / catnap. It offers some health benefit. According to wikipedia:

Since these seminal studies demonstrated that naps were as good as a night of sleep on some memory tasks, more sleep laboratories have reported similar results. A NASA study has found, however, that while naps improve memory functions, they do not aid basic alertness